Frequencies for first 10,000 rows of model variable in vehicle dataset :

    Vehicle |
 Model Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        121        1.21        1.21
          1 |        559        5.59        6.80
          2 |        454        4.54       11.34
          3 |        400        4.00       15.34
          4 |        134        1.34       16.68
          5 |        112        1.12       17.80
          6 |        249        2.49       20.29
          7 |        104        1.04       21.33
          8 |        208        2.08       23.41
          9 |        364        3.64       27.05
         10 |        225        2.25       29.30
         11 |        115        1.15       30.45
         12 |        126        1.26       31.71
         13 |        166        1.66       33.37
         14 |         47        0.47       33.84
         15 |        158        1.58       35.42
         16 |         70        0.70       36.12
         17 |         47        0.47       36.59
         18 |         25        0.25       36.84
         31 |        262        2.62       39.46
         32 |        422        4.22       43.68
         33 |        281        2.81       46.49
         34 |        273        2.73       49.22
         35 |        112        1.12       50.34
         36 |         97        0.97       51.31
         37 |         56        0.56       51.87
         38 |         72        0.72       52.59
         39 |         47        0.47       53.06
         40 |         33        0.33       53.39
         41 |          4        0.04       53.43
         42 |         20        0.20       53.63
         43 |         71        0.71       54.34
         44 |          9        0.09       54.43
         51 |          3        0.03       54.46
         61 |         15        0.15       54.61
         62 |         16        0.16       54.77
         63 |        105        1.05       55.82
         64 |         96        0.96       56.78
         65 |        422        4.22       61.00
         66 |        318        3.18       64.18
         69 |         59        0.59       64.77
         70 |         98        0.98       65.75
         71 |        140        1.40       67.15
         72 |        578        5.78       72.93
         73 |      1,034       10.34       83.27
         74 |        292        2.92       86.19
         75 |         16        0.16       86.35
         76 |         30        0.30       86.65
         77 |        170        1.70       88.35
         78 |          9        0.09       88.44
         79 |         70        0.70       89.14
         81 |        269        2.69       91.83
         82 |         28        0.28       92.11
         83 |        185        1.85       93.96
         84 |        318        3.18       97.14
         85 |         21        0.21       97.35
         88 |         36        0.36       97.71
         89 |         27        0.27       97.98
         90 |          1        0.01       97.99
         97 |         51        0.51       98.50
         98 |          4        0.04       98.54
         99 |        146        1.46      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016